Income Taxes (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Dec. 31, 2021	Jul. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Mar. 15, 2020
Income Taxes [Line Items]
Effective income tax rate			(9.50%)	2.50%
Corporate federal income tax rate			21.00%	21.00%
Regulatory Liabilities					$ 160,655
Natural Gas Accounts Receivable [Member]
Income Taxes [Line Items]
Refunded payments			$ 12,487
Payment Assistance Program [Member]
Income Taxes [Line Items]
Refunded payments	$ 5,000	$ 500
Minimum [Member]
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, at State Statutory Income Tax Rate, Percent			2.50%
Maximum [Member]
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, at State Statutory Income Tax Rate, Percent			9.99%